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INVENTION
Patent of the Russian Federation RU2156403
BURNER OF MIXING AIR HEATER
The name of the inventor: Sviridova TS; Kurbanov AZ; Kreinin E.V.
The name of the patent holder: OOO "Teploservis"
Address for correspondence: 346000, Rostov Region, Kamensk-Shakhtinsky, ul. Bashkevich, d.72, kv.59, Kurbanov AZ
Date of commencement of the patent: 1998.07.03
The invention relates to a gas burner technique for mixing air heaters. The technical result, consisting in simplifying the design, achieving compactness and the possibility of assembling (mounting) linear and transient modules to the required thermal power by their complete unification, is achieved in that in a gas burner device containing linear and transient modules, the first of which include a gas manifold with Nozzles and stabilizers attached to it in the form of perforated plates, the transition module is I-shaped, the gas manifold of its main central branch is equipped with a gas supply pipe, the linear modules are attached to the four ends of the side branches of the transition module, and the gas manifolds of all three branches of the transition module are equipped with stabilizers In the form of perforated plates.
DESCRIPTION OF THE INVENTION
The invention relates to fuel-burning devices and can be used in mixing-type air heaters, as well as in ventilation systems, air curtains for autonomous air heating and drying installations.
A burner [1] is known, comprising a gas manifold with outlet nozzles and stabilizers with end rotatable shutters. The disadvantage of this burner is the complexity of the design and the difficulties associated with unification.
In addition, there is a known method for burning gas in mixing air heaters, which optimizes aerodynamic parameters [2]. However, the questions of simplifying the construction are not considered here.
The gas burner [3], which is closest to the invention in terms of technical essence and achieved result, is made of separate linear modules, each of which contains a cylindrical fuel manifold with gas nozzles, and additional cylindrical shells and transverse sheet partitions. However, this gas burner device is also characterized by a significant drawback, which lies primarily in the complexity of the design and installation (dismantling) of individual line modules.
The purpose of the invention is to simplify the design, to achieve compactness and the ability to assemble (mount) the linear and transient modules to the required thermal power by their complete unification.
The goal is achieved by the fact that the gas burner includes linear and transient modules, wherein the linear modules include a gas manifold with nozzles and attached stabilizers in the form of perforated plates, an I-shaped transition module having a gas manifold of its main central branch with a central branch pipe for Connections to an external gas pipeline, to the four ends of the lateral branches of which linear modules are attached, in addition, the linear and transition module are made of the same length.
Comparable analysis shows that the proposed technical solution, in contrast to the prototype, provides increased compactness and the possibility of unifying its modules by performing a transition module in an I-shape, to its four lateral branches, linear modules containing an I-shaped gas manifold with a central branch pipe for connection To an external gas pipeline. In this case, all five gas manifolds are equipped with perforated stabilizers, and the linear and transitive module are made of equal length. In addition, the ends of the gas collectors and stabilizers are equipped with mounting flanges and flanges, respectively.
These differences make it possible to conclude that the proposed invention complies with the criterion of "novelty".
The features distinguishing the proposed technical solution from the prototype have not been identified in other solutions of this and related fields of technology and therefore provide the proposed invention with the criterion of "essential differences".
Compared with the prototype in the claimed device, each of its constituent modules can work as an independent burner, gas supply is carried out by connecting an external gas pipeline to the central branch pipe in the gas manifold of the transition module, the igniter and the flame monitor are located in one of the end-line modules.
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In Fig. 1 and 2, respectively, show the general view (plan) of the burner and the side view.
The burner contains a transition module 1 with an I-shaped gas collector and four linear modules 2. The central branch of the transition module is provided with a gas supply pipe 3 and the linear modules 2 are attached to its lateral surfaces using special connecting flanges and flanges 4. At the same time The gas manifolds of all three branches of the transition module 1 and the four lateral linear modules 2 are equipped with stabilizers in the form of perforated plates 5.
The gas collectors of the linear and transient modules have uniformly distributed gas nozzles along the length, and the stabilizers 5 are attached to the gas manifolds at some angle.
One of the lateral line modules is provided with a firing device 6 and a flame monitoring sensor 7.
The gas burner is designed to work in a heated air flow both when mounted in a separate casing (mixing air heater) and directly in the air supply ducts, the air curtain or the drying unit. At the same time, air is forced, part passes through the perforations of the plates of stabilizer 5, participating in the combustion of gas flowing from the nozzles of the gas manifold, while the other part is mixed and heated by mixing with hot combustion products.
Uniform distribution of gas nozzles along the gas collectors of the transition and linear modules ensures a reliable spread of the flame in them due to the effect of "running fire". Flame sensor 7 detects a reliable ignition and safety of the burner.
The burner shown in FIG. 1 and 2 and consisting of four linear and one transition modules, is a unit element. Due to the identity of the basic geometric parameters and the almost complete unification of the modules, it is easy to assemble (mount) any number of modules, depending on the required heat output of the air heater.
The unified manufacture of burner module modules has experimentally confirmed the simplicity and reliability of its installation and operation. There is a possibility of a set of linear and transient modules of burners with a capacity of up to 6.3 MW. At the same time, identical parameters of the modules cause the operation without overheating and minimal CO emissions (<6 mg / m 3 ) and No x (<1.5 mg / m 3 ).
The maximum fuel utilization factor (almost 100%) and a sufficiently wide range of air heating (up to 130 ° C) provides the proposed technical solution with a wide implementation base in autonomous air heating systems, supply ventilation and process drying plants.
INFORMATION SOURCES
1. Aut.sv. USSR N 877233, F 23 D 14/02, priority 28.05.82 "Gas burner".
2. Patent of Russia No. 151338, 4 F 24 H 3/02, priority 15.10.87 "Air heating method".
3. Aut.sv. USSR No. 1746131, F 23 D 14/02, priority 26.06.90 "Gas burner" (prototype).
CLAIM
1. A burner of a mixing air heater comprising linear and transition modules, the first of which include a gas manifold with nozzles and attached stabilizers in the form of perforated plates, characterized in that the transition module is in the I-shape, the gas manifold of its main central branch is provided with Gas-supply nozzle, the linear modules are attached to the four ends of the side branches of the transition module, and the gas manifolds of all three branches of the transition module are equipped with stabilizers in the form of perforated plates.
2. The burner of the mixing air heater according to claim 1, characterized in that the end ends of the stabilizers and gas manifolds are respectively provided with connecting flanges and flanges.
3. The burner of the mixing air heater according to claims 1 and 2, characterized in that the linear and transition modules are of the same length.
print version
Date of publication 25.01.2007gg
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